Itsuki Hashima is a popular, young novelist. However, he is obsessed with little sisters and his works seem to always include little sisters, so there’s some difficulty coming up with a new series. One day, his younger step-brother Chihiro and his colleagues, Hayato Fuwa, Nayuta Kani, and fellow college student, Miyako Shirakawa show up at his apartment. They enjoy dinner, drinks, and a game. That night, Nayuta makes advances towards Itsuki, but...
That's also unknown? Then...
Das ist auch nicht bekannt … Dann …
¿También desconocido? Entonces…
¿También desconocido? Entonces…
On ne sait pas non plus…
Non si sa neanche quello? Allora...
Desconhecido também? Então...
Опять двадцать пять?